On Wednesday 26 July 2006 15:56, Ed Kim wrote:
>
> try these commands
>
> mkisofs -o /Backup/mybackup.iso -R -J -l -v /path/to/data/directory/
>
That worked perfectly.
> cdrecord -v -sao dev=cdrom -data /Backup/mybackup.iso
>
This still chokes:
......
cdrecord: Found DVD media: using cdr_mdvd.
Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).
Driver flags : SWABAUDIO BURNFREE
Supported modes: PACKET SAO
Drive buf size : 1563904 = 1527 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 1714 MB
Total size: 1968 MB (195:02.81) = 877711 sectors
Lout start: 1969 MB (195:04/61) = 877711 sectors
Current Secsize: 2048
ATIP start of lead in: -150 (00:00/00)
Disk type: unknown dye (reserved id code)
Manuf. index: -1
Manufacturer: unknown (not in table)
Blocks total: 15872 Blocks current: 15872 Blocks remaining: -861839
cdrecord: WARNING: Data may not fit on current disk.
cdrecord: Notice: Most recorders cannot write CD's >= 90 minutes.
cdrecord: Notice: Use -ignsize option to allow >= 90 minutes.
cdrecord: Notice: Use -overburn option to write more than the official disk
capacity.
cdrecord: Notice: Most CD-writers do overburning only on SAO or RAW mode.
******
From the man page:
-ignsize
Ignore the known size of the medium. This option should be used
with extreme care, it exists only for debugging purposes don’t
use it for other reasons. It is not needed to write disks with
more than the nominal capacity. This option implies -overburn.
so it doesn't sound as though that would be the solution.
In order to rule out some of the possible causes I did try to write a
straightforward data dvd backup in k3b - something I do regularly on this
workstation. Both boxes have the same version of cdrecord. On the box that
I'm trying to backup I cannot get a dvd backup. On this one there is no
problem. On the problematic one I keep seeing references to pread642(2)
Anne
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